Patents Assigned to Park Systems Corp.
  • Publication number: 20230324433
    Abstract: The present invention relates to a method for measuring, by a measurement device, characteristics of a surface of an object to be measured. The method includes an approach step of positioning the tip to come into contact with a specific position of the surface of the object to be measured and a lift step of separating the contacted tip from the surface of the object are repeatedly performed with respect to a plurality of positions of the surface of the object. The tip is controlled to vibrate in a portion or the entirety of the approach step and the lift step, and a movement characteristic of the tip is controlled according to a change of the vibration characteristic of the tip.
    Type: Application
    Filed: September 24, 2021
    Publication date: October 12, 2023
    Applicant: PARK SYSTEMS CORP.
    Inventors: Ahjin JO, Seung Hun BAIK, Seonghun YUN, Byoung-Woon AHN, Sang-il PARK
  • Publication number: 20230324434
    Abstract: Disclosed is a method for measuring the characteristics of the surface of the object to be measured by means of a measuring apparatus for measuring the characteristics of the surface of the object to be measured by measuring an interaction between a tip and the surface of the object to be measured. The method, according to an embodiment of the present invention is a method for measuring the characteristics of the surface of the object to be measured by repeating an approaching operation of bringing the tip close to and in contact with the surface of the object to be measured and a lifting operation. The approaching operation is performed by controlling such that a characteristic value reaches a set point, and the set point is variably set on the basis of the state of the point on which the approaching operation is performed.
    Type: Application
    Filed: September 24, 2021
    Publication date: October 12, 2023
    Applicant: PARK SYSTEMS CORP.
    Inventors: Ahjin JO, Seung Hun BAIK, Seonghun YUN, Byoung-Woon AHN, Sang-il PARK
  • Patent number: 11761981
    Abstract: An apparatus and a method for identifying a sample position in an atomic force microscope according to an exemplary embodiment of the present disclosure are provided. The method for identifying a sample position in an atomic force microscope includes receiving a vision image including a subject sample through a vision unit; determining a subject sample region in the vision image using a prediction model which is configured to output the subject sample region by receiving the vision image as an input; and determining a position of the subject sample based on the subject sample region.
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: September 19, 2023
    Assignee: PARK SYSTEMS CORP.
    Inventors: JeongHun An, YongSung Cho, Sang-il Park
  • Publication number: 20230204624
    Abstract: Provided are an apparatus and a method for identifying a target position in an atomic microscope. An apparatus is configured to acquire result data identifying the cantilever from an image using an identification model learned to identify the cantilever based on the image photographed by a photographing unit, and calculate a target position from the cantilever using the acquired result data, in which the result data include at least one of bounding box data representing a bounding box including a boundary of the cantilever and segmentation data obtained by segmenting the cantilever and an object other than the cantilever.
    Type: Application
    Filed: December 24, 2021
    Publication date: June 29, 2023
    Applicant: PARK SYSTEMS CORP.
    Inventors: JeongHun An, YongSung Cho, Sang-il Park
  • Publication number: 20230184808
    Abstract: The present disclosure provides a measuring method for measuring heat distribution of a specific space using an SThM probe, and a method and device for detecting a beam spot of a light source. The method according to an embodiment of the present disclosure is the measuring method for measuring heat distribution of a specific space, the measuring method includes: linearly moving a SThM probe that may measure a temperature change in the specific space; and calculating heat distribution of the specific space using continuous temperature change values obtained from the SThM probe during the moving step. According to the measuring method, and the method and device for detecting a beam spot of a light source, it is possible to map temperature distribution in a small space using a SThM probe and it is possible to accurately detect a beam spot using the temperature distribution.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 15, 2023
    Applicant: PARK SYSTEMS CORP.
    Inventors: Sang-il PARK, Byoung-Woon AHN, Ahjin JO, Soobong Choi
  • Patent number: 11619649
    Abstract: An atomic force microscope equipped with an optical measurement device is disclosed. An atomic force microscope equipped with an optical measurement device which acquires characteristics of a surface of a measurement target by moving a probe along the surface of the measurement target while scanning the measurement target on an XY plane using an XY scanner for supporting the measurement target, includes: an optical measurement device including a lighting unit configured to allow light to enter the surface of the measurement target, and a detection unit configured to detect light reflected by the surface of the measurement target, the optical measurement device being configured to acquire the characteristics of the surface of the measurement target by the scanning by the XY scanner; and a control device configured to control an operation of the atomic force microscope and an operation of the optical measurement device.
    Type: Grant
    Filed: November 26, 2021
    Date of Patent: April 4, 2023
    Assignee: PARK SYSTEMS CORP.
    Inventors: Sang-il Park, Byoung-Woon Ahn, Seung-Ho Han, Sang-Joon Cho
  • Patent number: 11598788
    Abstract: The present disclosure provides a measuring method for measuring heat distribution of a specific space using an SThM probe, and a method and device for detecting a beam spot of a light source. The method according to an embodiment of the present disclosure is the measuring method for measuring heat distribution of a specific space, the measuring method includes: linearly moving a SThM probe that may measure a temperature change in the specific space; and calculating heat distribution of the specific space using continuous temperature change values obtained from the SThM probe during the moving step. According to the measuring method, and the method and device for detecting a beam spot of a light source, it is possible to map temperature distribution in a small space using a SThM probe and it is possible to accurately detect a beam spot using the temperature distribution.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: March 7, 2023
    Assignee: PARK SYSTEMS CORP.
    Inventors: Sang-il Park, Byoung-Woon Ahn, Ahjin Jo, Soobong Choi
  • Publication number: 20230046236
    Abstract: The present invention relates to a method for acquiring a surface characteristic of a measuring object using a tilted tip, an atomic force microscope for carrying out the method, and a computer program stored on a storage medium for carrying out the method, capable of acquiring an image deeply to the inside of an undercut structure and easily separating a tip from the inside of the undercut structure. The method according to an exemplary embodiment of the present invention is a method for acquiring a surface characteristic of a measuring object using a measuring device including a tip interacting with the surface of the measuring object.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 16, 2023
    Applicant: PARK SYSTEMS CORP.
    Inventors: Ahjin JO, Sang-il PARK, Byoung-Woon AHN, Seung Hun BAIK
  • Publication number: 20220206039
    Abstract: An apparatus and a method for identifying a sample position in an atomic force microscope according to an exemplary embodiment of the present disclosure are provided. The method for identifying a sample position in an atomic force microscope includes receiving a vision image including a subject sample through a vision unit; determining a subject sample region in the vision image using a prediction model which is configured to output the subject sample region by receiving the vision image as an input; and determining a position of the subject sample based on the subject sample region.
    Type: Application
    Filed: December 24, 2021
    Publication date: June 30, 2022
    Applicant: PARK SYSTEMS CORP.
    Inventors: JeongHun AN, YongSung CHO, Sang-il PARK
  • Patent number: 11175308
    Abstract: A chip carrier exchanging device receives a used chip carrier from a head of a scanning probe microscope that performs measurement by using the chip carrier configured such that a measurement means is attached to a carrier made of a magnetic material, and the chip carrier exchanging device supplies a new chip carrier to the head. The chip carrier exchanging device includes: a permanent magnet; a magnetism flow connecting unit made of a magnetic material that allow magnetism to flow therethrough, the magnetism flow connecting unit being configured to fix the chip carrier by exerting a magnetic effect on the carrier; and a drive unit configured to operate the permanent magnet to change magnetic force between the carrier and the magnetism flow connecting unit.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: November 16, 2021
    Assignee: PARK SYSTEMS CORP.
    Inventors: Sang-il Park, Yonghan Lee, Ahjin Jo
  • Publication number: 20200386784
    Abstract: A chip carrier exchanging device receives a used chip carrier from a head of a scanning probe microscope that performs measurement by using the chip carrier configured such that a measurement means is attached to a carrier made of a magnetic material, and the chip carrier exchanging device supplies a new chip carrier to the head. The chip carrier exchanging device includes: a permanent magnet; a magnetism flow connecting unit made of a magnetic material that allow magnetism to flow therethrough, the magnetism flow connecting unit being configured to fix the chip carrier by exerting a magnetic effect on the carrier; and a drive unit configured to operate the permanent magnet to change magnetic force between the carrier and the magnetism flow connecting unit.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 10, 2020
    Applicant: PARK SYSTEMS CORP.
    Inventors: Sang-il PARK, Yonghan LEE, Ahjin JO
  • Patent number: 10133052
    Abstract: An image acquiring method for acquiring an image using a measurement apparatus including an image acquiring means which acquires an image of a surface of a target to be measured in the unit of predetermined size pixels and a moving means capable of moving the target to be measured, the image acquiring method includes: acquiring an image of a first region from the surface of the target to be measured through the image acquiring means; acquiring an image of a second region, which is different from the first region, by moving the target to be measured, through the moving means; acquiring a differential image by subtracting, from either the image of the first region or the image of the second region, the other image; and overlapping the differential image multiple times.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 20, 2018
    Assignee: PARK SYSTEMS CORP.
    Inventors: Ah Jin Jo, Ju Suk Lee, Sang Han Chung, Han Aul Noh
  • Patent number: 9645168
    Abstract: Provided are a head having improved usability by limiting a movement range of a laser spot and an atomic force microscope having the same. A head according to an exemplary embodiment of the present disclosure is a head measuring bending of a cantilever by using a laser beam reflected on the surface of the cantilever in order to acquire information on a sample surface by using a tip of the cantilever. The head includes: a spot moving means configured to move a laser spot so as to position the laser spot on the surface of the cantilever; and a movement limiting means configured to limit a movement range of the laser spot moved by the spot moving means in a predetermined range.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: May 9, 2017
    Assignee: PARK SYSTEMS CORP.
    Inventors: Sang-il Park, Dongryul Kim, Byoung Woon Ahn, Sang Han Chung
  • Patent number: 9081272
    Abstract: The present invention relates to a leveling apparatus that levels an object to be leveled with a surface of a substrate by measuring the force applied to the object, and an atomic force microscope including the leveling apparatus. A leveling apparatus according to the present invention, which levels an object with a substrate such that one side of the object is brought in parallel contact with the surface of the substrate, includes: force sensors disposed to measure force at at least three points on the other side of the object; an angle adjusting unit disposed to adjust the angle between the object and the surface of the substrate; and a controller connecting with the force sensors and the angle adjusting unit to drive the angle adjusting unit on the basis of data from the force sensors.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: July 14, 2015
    Assignee: Park Systems Corp.
    Inventors: Suk Hyun Kim, Han Aul Noh, Ah Jin Jo
  • Publication number: 20140304861
    Abstract: The present invention relates to a leveling apparatus that levels an object to be leveled with a surface of a substrate by measuring the force applied to the object, and an atomic force microscope including the leveling apparatus. A leveling apparatus according to the present invention, which levels an object with a substrate such that one side of the object is brought in parallel contact with the surface of the substrate, includes: force sensors disposed to measure force at at least three points on the other side of the object; an angle adjusting unit disposed to adjust the angle between the object and the surface of the substrate; and a controller connecting with the force sensors and the angle adjusting unit to drive the angle adjusting unit on the basis of data from the force sensors.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicant: Park Systems Corp.
    Inventors: Suk Hyun Kim, Han Aul Noh, Ah Jin Jo
  • Patent number: 8402560
    Abstract: A scanning probe microscope compensates for relative drift between its upper structure that includes a probe and a scanner that scans the probe in a straight line and a lower structure that includes a sample stage and a scanner that scans the sample stage in a plane. A light beam from the upper structure is initially aligned with a center of a position sensitive photo detector (PSPD) disposed on the lower structure at a predetermined position of the sample stage and any subsequent misalignments of the light beam with the center of the PSPD at the predetermined position of the sample stage are determined to be caused by drift and compensated by the scanning probe microscope.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: March 19, 2013
    Assignee: Park Systems Corp.
    Inventors: Sang-il Park, Hanaul Noh
  • Patent number: 8209766
    Abstract: A scanning probe microscope tilts the scanning direction of a z-scanner by a precise amount and with high repeatability using a movable assembly that rotates the scanning direction of the z-scanner with respect to the sample plane. The movable assembly is moved along a curved guide by a rack-and-pinion drive system and has grooves that engage with corresponding ceramic balls formed on a stationary frame to precisely position the movable assembly at predefined locations along the curved guide. The grooves are urged against the ceramic balls via a spring force and, prior to movement of the movable assembly, a pneumatic force is applied to overcome the spring force and disengage the grooves from the ceramic balls.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 26, 2012
    Assignee: Park Systems Corp.
    Inventors: Sang-il Park, Sang Han Chung, Byoung-Woon Ahn
  • Patent number: 8099793
    Abstract: An automatic probe exchange system for a scanning probe microscope (SPM) exchanges probes between a probe mount on the SPM and a probe mount on a probe tray based on differential magnetic force. When the magnetic force on the SPM side is greater, the probe is attached to the probe mount on the SPM. When the magnetic force on the probe tray side is greater, the probe is attached to the probe mount on the probe tray. The magnetic force on the probe tray side is varied by moving the magnets that generate the magnetic force on the probe tray side closer to or further from the probe.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: January 17, 2012
    Assignee: Park Systems Corp.
    Inventors: Hyeong Chan Jo, Hong Jae Lim, Seung Jun Shin, Joon Hui Kim, Yong Seok Kim, Sang-il Park
  • Publication number: 20100218285
    Abstract: A scanning probe microscope images a surface of a sample by scanning the sample along a forward path while collecting data for imaging the surface of the sample, recording an uppermost position of the probe while the sample is scanning along the forward path, and scanning the sample along a return path while the probe is positioned higher than the uppermost position of the probe. The return scanning speed is configured to be higher than the forward scanning speed so that the surface image can be obtained rapidly. Also, the return path tracks the forward path until the beginning of the forward path is reached. In this manner, positioning errors caused by hysteresis in the scanning system can be eliminated.
    Type: Application
    Filed: May 4, 2010
    Publication date: August 26, 2010
    Applicant: Park Systems Corp.
    Inventors: Sang-il PARK, Sang Han CHUNG, Byoung-Woon AHN
  • Patent number: 7709791
    Abstract: Provided is a scanning probe microscope (SPM), a probe of which can be automatically replaced and the replacement probe can be attached onto an exact position. The SPM includes a first scanner that has a carrier holder, and changes a position of the carrier holder in a straight line; a second scanner changing a position of a sample on a plane; and a tray being able to store a spare carrier and a spare probe attached to the spare carrier. The carrier holder includes a plurality of protrusions.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: May 4, 2010
    Assignee: Park Systems Corp.
    Inventors: Hyeong Chan Jo, Hong Jae Lim, Seung Jun Shin, Joon Hui Kim, Yong Seok Kim, Sang-il Park